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Research Output 1981 2019

2019

Enhancing the predictive capabilities of a composite plasticity model using cohesive zone modeling

Khaled, B. M., Shyamsunder, L., Holt, N., Hoover, C., Rajan, S. & Blankenhorn, G., Jun 1 2019, In : Composites Part A: Applied Science and Manufacturing. 121, p. 1-17 17 p.

Research output: Contribution to journalArticle

Plasticity
Delamination
Composite materials
Laminated composites
Constitutive models
1 Citation (Scopus)

Simulating the Fracture of Notched Mortar Beams through Extended Finite-Element Method and Peridynamics

Das, S., Hoffarth, C., Ren, B., Spencer, B., Sant, G., Rajan, S. & Neithalath, N., Jul 1 2019, In : Journal of Engineering Mechanics. 145, 7, 04019049.

Research output: Contribution to journalArticle

Mortar
Finite element method
Cements
Fracture energy
Crack tips
1 Citation (Scopus)

Verification and validation of a three-dimensional composite impact model with tabulated input

Goldberg, R. K., Ricks, T. M., Carney, K. S., Dubois, P., Khaled, B., Shyamsunder, L., Rajan, S. & Blankenhorn, G., Jan 1 2019, AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Scitech 2019 Forum).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Composite materials
Plasticity
Constitutive models
Tensors
Plastic deformation
2018
2 Citations (Scopus)

Analysis and Characterization of Damage Using a Generalized Composite Material Model Suitable for Impact Problems

Goldberg, R. K., Carney, K. S., DuBois, P., Hoffarth, C., Khaled, B., Rajan, S. & Blankenhorn, G., Jul 1 2018, In : Journal of Aerospace Engineering. 31, 4, 04018025.

Research output: Contribution to journalArticle

Composite materials
Plasticity
Plastic deformation
Polymer matrix composites
Stress-strain curves
1 Citation (Scopus)

Damage characterization of composites to support an orthotropic plasticity material model

Khaled, B., Shyamsunder, L., Hoffarth, C., Rajan, S., Goldberg, R. K., Carney, K. S., DuBois, P. & Blankenhorn, G., Jan 1 2018, (Accepted/In press) In : Journal of Composite Materials.

Research output: Contribution to journalArticle

Plasticity
Composite materials
Temperature

Implementation of a tabulated failure model into a generalized composite material model

Goldberg, R. K., Carney, K. S., DuBois, P., Hoffarth, C., Khaled, B., Shyamsunder, L., Rajan, S. & Blankenhorn, G., Jan 1 2018, (Accepted/In press) In : Journal of Composite Materials.

Research output: Contribution to journalArticle

Composite materials
Plasticity
Polymer matrix composites
Constitutive models
6 Citations (Scopus)

Microstructure-guided numerical simulations to predict the thermal performance of a hierarchical cement-based composite material

Das, S., Aguayo, M., Rajan, S., Sant, G. & Neithalath, N., Mar 1 2018, In : Cement and Concrete Composites. 87, p. 20-28 9 p.

Research output: Contribution to journalArticle

Phase change materials
Cements
Thermal conductivity
Microstructure
Thermodynamic properties

Verification and Validation of a Generalized Orthotropic Material Model MAT213 Implemented in LS-DYNA

Shyamsunder, L., Khaled, B., Holt, N., Hoffarth, C., Rajan, S., Goldberg, R., Carney, K. S., Dubois, P. & Blankenhorn, G., Jan 1 2018, 33rd Technical Conference of the American Society for Composites 2018. DEStech Publications Inc., Vol. 1. p. 279-290 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Materials properties
Fibers
Composite materials
Testing
Experiments
2017

Development of an input suite for an orthotropic composite material model

Hoffarth, C., Khale, B., Shyamsunder, L., Rajan, S., Goldberg, R., Carney, K. S., DuBois, P. & Blankenhorn, G., Jan 1 2017, 32nd Technical Conference of the American Society for Composites 2017. DEStech Publications Inc., Vol. 4. p. 2853-2864 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Composite materials
Composite Resins
Constitutive models
Strain rate
Resins
4 Citations (Scopus)

Experimental characterization of composites to support an orthotropic plasticity material model

Khaled, B., Shyamsunder, L., Hoffarth, C., Rajan, S., Goldberg, R. K., Carney, K. S., DuBois, P. & Blankenhorn, G., Jan 1 2017, (Accepted/In press) In : Journal of Composite Materials.

Research output: Contribution to journalArticle

Plasticity
Composite materials
Aerospace industry
Constitutive models
Materials properties
1 Citation (Scopus)

Implementation of a tabulated failure model into a generalized composite material model suitable for use in impact problems

Goldberg, R. K., Carney, K. S., DuBois, P., Hoffarth, C., Khaled, B., Shyamsunder, L., Rajan, S. & Blankenhorn, G., Jan 1 2017, 32nd Technical Conference of the American Society for Composites 2017. DEStech Publications Inc., Vol. 2. p. 1315-1330 16 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Composite materials
Plasticity
Polymer matrix composites
Constitutive models
5 Citations (Scopus)

Using Virtual Tests to Complete the Description of a Three-Dimensional Orthotropic Material

Harrington, J., Hoffarth, C., Rajan, S., Goldberg, R. K., Carney, K. S., Dubois, P. & Blankenhorn, G., Sep 1 2017, In : Journal of Aerospace Engineering. 30, 5, 04017025.

Research output: Contribution to journalArticle

Composite materials
Testing
Stress-strain curves
Constitutive models
Large scale systems
6 Citations (Scopus)

Verification and validation of a three-dimensional Orthotropic Plasticity constitutive model using a unidirectional composite

Hoffarth, C., Khaled, B., Shyamsunder, L., Rajan, S., Goldberg, R., Carney, K. S., DuBois, P. & Blankenhorn, G., Mar 1 2017, In : Fibers. 5, 1, 12.

Research output: Contribution to journalArticle

Constitutive models
Plasticity
Composite materials
Aerospace industry
Elastic deformation
2016

Analysis and characterization of damage and failure utilizing a generalized composite material model suitable for use in impact problems

Goldberg, R. K., Carney, K. S., Dubois, P., Khaled, B., Hoffarth, C., Rajan, S. & Blankenhorn, G., 2016, Proceedings of the American Society for Composites - 31st Technical Conference, ASC 2016. DEStech Publications Inc.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Composite materials
Plasticity
Stress-strain curves
Constitutive models
NASA
1 Citation (Scopus)

Analysis and Characterization of Damage Utilizing an Orthotropic Generalized Composite Material Model Suitable for Use in Impact Problems

Goldberg, R. K., Carney, K. S., Dubois, P., Hoffarth, C., Rajan, S. & Blankenhorn, G., 2016, Earth and Space 2016: Engineering for Extreme Environments - Proceedings of the 15th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments. American Society of Civil Engineers (ASCE), p. 765-774 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Composite materials
Plasticity
Polymer matrix composites
Stress-strain curves
Constitutive models

Damage modeling of ballistic impact in woven fabrics

Rajan, S. & Mobasher, B., Feb 12 2016, Advanced Fibrous Composite Materials for Ballistic Protection. Elsevier Inc., p. 501-515 15 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Ballistics
Armor
Propulsion
Fans
Materials properties

Design, manufacture, and analysis of ceramic-composite armor

Bracamonte, L., Loutfy, R., Yilmazcoban, I. K. & Rajan, S., May 13 2016, Lightweight Ballistic Composites: Military and Law-Enforcement Applications: Second Edition. Elsevier Inc., p. 349-367 19 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Armor
Composite materials
Ballistics
Piercing
Projectiles
13 Citations (Scopus)

Development of an Orthotropic Elasto-Plastic Generalized Composite Material Model Suitable for Impact Problems

Goldberg, R. K., Carney, K. S., Dubois, P., Hoffarth, C., Harrington, J., Rajan, S. & Blankenhorn, G., Jul 1 2016, In : Journal of Aerospace Engineering. 29, 4, 04015083.

Research output: Contribution to journalArticle

Plastics
Composite materials
Plastic deformation
Polymer matrix composites
Aerospace industry
8 Citations (Scopus)

Finite element modeling of human brain response to football helmet impacts

Darling, T., Muthuswamy, J. & Rajan, S., Feb 11 2016, (Accepted/In press) In : Computer Methods in Biomechanics and Biomedical Engineering. p. 1-11 11 p.

Research output: Contribution to journalArticle

Brain
Strain rate
Cell death
Loads (forces)
9 Citations (Scopus)

Implementation and validation of a three-dimensional plasticity-based deformation model for orthotropic composites

Hoffarth, C., Rajan, S., Goldberg, R. K., Revilock, D., Carney, K. S., DuBois, P. & Blankenhorn, G., Dec 1 2016, In : Composites Part A: Applied Science and Manufacturing. 91, p. 336-350 15 p.

Research output: Contribution to journalArticle

Plasticity
Constitutive models
Composite materials
Stress-strain curves
Laminates

Numerical analysis of ballistic composite materials

Rajan, S., May 13 2016, Lightweight Ballistic Composites: Military and Law-Enforcement Applications: Second Edition. Elsevier Inc., p. 327-348 22 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Ballistics
Numerical analysis
Composite materials
Engineers
Finite element method
30 Citations (Scopus)

The influence of microencapsulated phase change material (PCM) characteristics on the microstructure and strength of cementitious composites: Experiments and finite element simulations

Aguayo, M., Das, S., Maroli, A., Kabay, N., Mertens, J. C. E., Rajan, S., Sant, G., Chawla, N. & Neithalath, N., Oct 1 2016, In : Cement and Concrete Composites. 73, p. 29-41 13 p.

Research output: Contribution to journalArticle

Phase change materials
Microstructure
Composite materials
Experiments
Cements
2015
4 Citations (Scopus)

Incorporation of plasticity and damage into an orthotropic three-dimensional model with tabulated input suitable for use in composite impact problems

Goldberg, R. K., Carney, K. S., Dubois, P., Hoffarth, C., Rajan, S. & Blankenhorn, G., 2015, Proceedings of the American Society for Composites - 30th Technical Conference, ACS 2015. DEStech Publications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Plasticity
Composite materials
Plastic deformation
Polymer matrix composites
Aerospace industry

Multiphysics design optimization model for structural walls incorporating phase-change materials

Stockwell, A., Neithalath, N. & Rajan, S., Mar 4 2015, In : Engineering Optimization. 47, 3, p. 308-327 20 p.

Research output: Contribution to journalArticle

Phase Change Material
Phase change materials
Multiphysics
Optimization Model
Costs
2014
6 Citations (Scopus)

Enhancements to modeling dry fabrics for impact analysis

Deivanayagam, A., Vaidya, A. & Rajan, S., May 1 2014, In : Journal of Aerospace Engineering. 27, 3, p. 484-490 7 p.

Research output: Contribution to journalArticle

Energy absorption
Ballistics
Constitutive models
Propulsion
Strain rate

Experimental study of shear behavior of Kevlar 49 fabrics

Zhu, D., Mobasher, B. & Rajan, S., 2014, Proceedings of the American Society for Composites - 29th Technical Conference, ASC 2014; 16th US-Japan Conference on Composite Materials; ASTM-D30 Meeting. DEStech Publications

Research output: Chapter in Book/Report/Conference proceedingConference contribution

MATLAB
Shear stress
Image processing
Kevlar 49
31 Citations (Scopus)

Finite element modeling of ballistic impact on multi-layer Kevlar 49 fabrics

Zhu, D., Vaidya, A., Mobasher, B. & Rajan, S., 2014, In : Composites Part B: Engineering. 56, p. 254-262 9 p.

Research output: Contribution to journalArticle

Ballistics
Strain rate
Subroutines
Constitutive models
NASA
15 Citations (Scopus)
Phase change materials
Concretes
Finite element method
energy
energy flow
2013

Finite element modeling of ballistic impact on multi-layer woven fabrics

Zhu, D., Mobasher, B. & Rajan, S., Jan 1 2013, p. 4578-4585. 8 p.

Research output: Contribution to conferencePaper

Ballistics
37 Citations (Scopus)

Long-term changes in the material properties of brain tissue at the implant-tissue interface

Sridharan, A., Rajan, S. & Muthuswamy, J., Dec 2013, In : Journal of Neural Engineering. 10, 6, 066001.

Research output: Contribution to journalArticle

Microelectrodes
Brain
Materials properties
Tissue
Elastic moduli
42 Citations (Scopus)

Mechanical behaviors of Kevlar 49 fabric subjected to uniaxial, biaxial tension and in-plane large shear deformation

Zhu, D., Mobasher, B., Vaidya, A. & Rajan, S., Jan 24 2013, In : Composites Science and Technology. 74, p. 121-130 10 p.

Research output: Contribution to journalArticle

Shear deformation
Poisson ratio
Ballistics
Kevlar 49
Image analysis

Optimization of finite element modeling of woven fabric ballistic impact

Zhu, D., Mobasher, B. & Rajan, S., 2013, Proceedings - 27th International Symposium on Ballistics, BALLISTICS 2013. DEStech Publications Inc., Vol. 2. p. 1608-1616 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Finite Element Modeling
Ballistics
Optimization
LS-DYNA
Subroutines
1 Citation (Scopus)

Strain rate effect on the failure behavior of kevlar 49 fabric and single yarn

Zhu, D., Mobasher, B. & Rajan, S., 2013, 13th International Conference on Fracture 2013, ICF 2013. Chinese Society of Theoretical and Applied Mechanics, Vol. 2. p. 1517-1526 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

strain rate
Yarn
Strain rate
Young modulus
tensile strength
2012
3 Citations (Scopus)

Improvements to dry fabric modeling for ballistic mitigation systems

Deivanayagam, A., Mobasher, B. & Rajan, S., 2012, Earth and Space 2012 - Proceedings of the 13th ASCE Aerospace Division Conference and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration. p. 1275-1284 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ballistics
Weibull distribution
Energy absorption
Constitutive models
Propulsion
15 Citations (Scopus)

Non-contacting strain measurement for cement-based composites in dynamic tensile testing

Zhu, D., Mobasher, B. & Rajan, S., Feb 2012, In : Cement and Concrete Composites. 34, 2, p. 147-155 9 p.

Research output: Contribution to journalArticle

Strain measurement
Tensile testing
Strain rate
Cements
Composite materials
33 Citations (Scopus)

Strain rate and gage length effects on tensile behavior of Kevlar 49 single yarn

Zhu, D., Mobasher, B., Erni, J., Bansal, S. & Rajan, S., Nov 2012, In : Composites Part A: Applied Science and Manufacturing. 43, 11, p. 2021-2029 9 p.

Research output: Contribution to journalArticle

Strain gages
Yarn
Strain rate
Gages
Tensile strength
2011
28 Citations (Scopus)

Characterization of Dynamic Tensile Testing Using Aluminum Alloy 6061-T6 at Intermediate Strain Rates

Zhu, D., Mobasher, B., Rajan, S. & Peralta, P., Nov 1 2011, In : Journal of Engineering Mechanics. 137, 10, p. 669-679 11 p.

Research output: Contribution to journalArticle

Tensile testing
Strain rate
Aluminum alloys
Failure modes
Testing
5 Citations (Scopus)

Characterization of mechanical behavior of Kevlar 49 fabrics

Zhu, D., Mobasher, B. & Rajan, S., 2011, Conference Proceedings of the Society for Experimental Mechanics Series. Vol. 6. p. 377-384 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Poisson ratio
Ballistics
Engines
Propulsion
Fans
80 Citations (Scopus)

Dynamic Tensile Testing of Kevlar 49 Fabrics

Zhu, D., Mobasher, B. & Rajan, S., Mar 2011, In : Journal of Materials in Civil Engineering. 23, 3, p. 230-239 10 p.

Research output: Contribution to journalArticle

Tensile testing
Strain rate
Image analysis
Dilatometers
Stress-strain curves
54 Citations (Scopus)

Experimental study and modeling of single yarn pull-out behavior of kevlar® 49 fabric

Zhu, D., Soranakom, C., Mobasher, B. & Rajan, S., Jul 2011, In : Composites Part A: Applied Science and Manufacturing. 42, 7, p. 868-879 12 p.

Research output: Contribution to journalArticle

Yarn
Shear strength
Kevlar 49
Analytical models
Friction
9 Citations (Scopus)

Experimental study of dynamic behavior of kevlar 49 single yarn

Zhu, D., Mobasher, B. & Rajan, S., 2011, Conference Proceedings of the Society for Experimental Mechanics Series. Vol. 1. p. 147-152 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yarn
Strain rate
Fibers
Materials properties
Tensile strength
3 Citations (Scopus)

Finite element modeling of ballistic impact on Kevlar 49 fabrics

Zhu, D., Mobasher, B. & Rajan, S., 2011, Conference Proceedings of the Society for Experimental Mechanics Series. Vol. 1. p. 249-258 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ballistics
Subroutines
Projectiles
Spatial distribution
Sensitivity analysis
48 Citations (Scopus)
Tensile testing
Modal analysis
Strain rate
Hydraulics
High speed cameras
1 Citation (Scopus)

Non-contacting strain measurement in dynamic tensile testing

Zhu, D., Mobasher, B. & Rajan, S., 2011, Conference Proceedings of the Society for Experimental Mechanics Series. Vol. 6. p. 209-216 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Strain measurement
Tensile testing
Dilatometers
Composite materials
Cements
Acoustics
Decomposition
Linear equations
Finite element method
2010
5 Citations (Scopus)

Experimental study of dynamic behavior of Kevlar 49 single yarn

Zhu, D., Mobasher, B. & Rajan, S., 2010, Society for Experimental Mechanics - SEM Annual Conference and Exposition on Experimental and Applied Mechanics 2010. Vol. 1. p. 542-547 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yarn
Strain rate
Fibers
Materials properties
Tensile strength
92 Citations (Scopus)

Numerical simulation of ceramic composite armor subjected to ballistic impact

Krishnan, K., Sockalingam, S., Bansal, S. & Rajan, S., Dec 2010, In : Composites Part B: Engineering. 41, 8, p. 583-593 11 p.

Research output: Contribution to journalArticle

Armor
Ballistics
Computer simulation
Composite materials
Projectiles
2009
27 Citations (Scopus)

Development of fabric constitutive behavior for use in modeling engine fan blade-out events

Bansal, S., Mobasher, B., Rajan, S. & Vintilescu, I., 2009, In : Journal of Aerospace Engineering. 22, 3, p. 249-259 11 p.

Research output: Contribution to journalArticle

Fans
Engines
Constitutive models
Propulsion
Strain rate
60 Citations (Scopus)

Development of reliable modeling methodologies for engine fan blade out containment analysis. Part II: Finite element analysis

Stahlecker, Z., Mobasher, B., Rajan, S. & Pereira, J. M., Mar 2009, In : International Journal of Impact Engineering. 36, 3, p. 447-459 13 p.

Research output: Contribution to journalArticle

Fans
Constitutive models
Engines
Finite element method
Ballistics
70 Citations (Scopus)

Development of reliable modeling methodologies for fan blade out containment analysis - Part I: Experimental studies

Naik, D., Sankaran, S., Mobasher, B., Rajan, S. & Pereira, J. M., Jan 2009, In : International Journal of Impact Engineering. 36, 1, p. 1-11 11 p.

Research output: Contribution to journalArticle

Fans
Constitutive models
Energy absorption
Projectiles
Ballistics