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Impact failure of beams using damage mechanics: Part I—Analytical model

✍ Scribed by Marcı́lio Alves; Norman Jones

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
349 KB
Volume
27
Category
Article
ISSN
0734-743X

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✦ Synopsis

A simple theoretical method, which is based on ductile damage mechanics and which retains strain rate effects, is presented for predicting the failure of beams made from a perfectly plastic material and subjected to impact loads. For this class of materials, the strains can be estimated by defining a hinge length. The definition adopted here leads to reasonable predictions for the plastic strains and the strain rate, as shown by comparing the results with numerical calculations and experimental data. The equivalent strain and the strain rate can be used in the damage model to predict the failure of beams, as shown in a companion paper (Alves,

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