Test validated progressive failure dynamic analysis (PFDA) utilizing finite element models are developed for characterizing the impact damage resistance and compression-after-impact (CAI) residual strength of composites and their sandwich structures.

A multiscale micromechanics based failure technique is employed to predict 5 stages (pre- and post-peak) of test observed impact load -displacement curve. It predicts composite damage evolution (i.e., delamination initiation, progression) in each ply. PFDA simulation enhances the commercial FE based explicit/dynamic methodology to consider the material strain rate effect, effect of manufacturing defects (i.e., void, fiber waviness).

GENOA allows impact damage foot print estimates and residual stress from dynamic impact simulations to establish the initial conditions in for post impact residual strength prediction (i.e., CAI, TAI, SAI).

 This webinar will highlight how predictions from GENOA compared to several industry applications such as:

  • Flat composite plate and sandwich composite lay-up configurations
  • Composite beam
  • Composite circular blade out and pressure vessels


Upcoming AlphaSTAR Webinars

November 12: Effect of Voids, Defect Shapes and Sizes, and Fiber Waviness on Fatigue Life using GENOA & MCQ

All webinars are recorded and sent to registrants afterwards.

Date: October 22, 2014

Time: 11:00 am EDT

Presenter: Cody Godines, Senior Engineer, AlphaSTAR Corporation

Register Now