Fracture mechanics :  proceedings of the Thirteenth National Symposium on Fracture Mechanics : a symposium / 
sponsored by ASTM Committee E-24 on Fracture Testing of Metals, American Society for Testing and Materials, Philadelphia, Pa., 16-18 June 1980 ; Richard Roberts, editor. 
 - Philadelphia, Pa. (1916 Race St., Philadelphia 19103) :  ASTM,  c1981. 
 - 649 p. :  ill. ;  24 cm. 
 - ASTM special technical publication ;  743. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fracture mechanics--Congresses.