Sajjad ,Muhammad Ehsanullah  <br/><br/>
A study of crack propagation in precipitate hardened materials using Discrete Dislocation Plasticity / 
Muhammad Ehsanullah Sajjad 
 - 37p. ;  Soft Copy,   30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS Mechanical Engineering      
<br/><br/><label>Dewey Class. No.: </label>621