Standard test method for KR curve determination : designation E561-15a / 
ASTM International. 
 - 16 pages ;  28 cm. 
<br/><br/><label>ISBN: </label> RM299.57 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fracture mechanics--Standards.<br/>Metallic composites--Fracture--Standards.