Author(s)

M. Srinivasan^1*, P. Maettig¹, K. W. Glitza¹, B. Sanny¹, A. Schumacher², M. Duhovic³

¹Department of Experimental Physics, University of Wuppertal, Wuppertal, Germany.
²Department of Mechanical Engineering, University of Wuppertal, Wuppertal, Germany.
³Institute for Composite Materials, Kaiserslautern, Germany.

A numerical investigation was carried out to examine the role of micro-sized diamond powder filler on the on-axis tensile stiffness properties of the standard modulus T300 and the high modulus YS90A woven fabric composite plates by progressive damage modeling. Finite element modeling (FEM) results for the T300 composite with and without diamond powder predicted a specific case of fiber failure in all the plies showing the characteristics of brittle failure. Static tensile tests were carried out on the YS90A composite coupons containing no diamond powder (DP) and filled with 6% and 12% volume fractions of DP. A higher content of diamond powder in the coupons led to agglomeration. This induced stress concentrations and subsequently reduced the mechanical properties. FEM was carried out considering specimens with and without an induced stress concentration geometry in the YS90A coupons filled with DP. The results of the on-axis tensile tests indicated a delamination type of failure in both cases with additional fiber fracture in the Open Hole Tensile (OHT) coupons.

Woven Composite, Diamond Powder (DP), Finite Element Modeling, Progressive Failure Analysis

Srinivasan, M. , Maettig, P. , Glitza, K. , Sanny, B. , Schumacher, A. and Duhovic, M. (2017) Validation of Numerical Modeling for the Prediction of Elastic and Failure Behavior of Diamond Powder Filled Woven Composites. Open Journal of Composite Materials, 7, 63-84. doi: 10.4236/ojcm.2017.72004.