Accession Number : AD0712494


Title :   STANDARD METHOD FOR THE 5/8 INCH DYNAMIC TEAR TEST


Descriptive Note : Interim rept.


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Lange, Eugene A ; Puzak, Peter P ; Cooley, Laurence A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/712494.pdf


Report Date : 27 Aug 1970


Pagination or Media Count : 40


Abstract : Fracture-safe design of structures depends critically upon the fracture toughness of the material, and remarkable advances in fracture mechanics technology have provided quantitative relationships between the mechanical aspects and the metallurgical aspects of fracture resistance. To exploit these scientific developments, the Dynamic Tear (DT) test has been under development to provide a practical, quantitative test method for fracture toughness measurement. DT energy has been used extensively for the characterization of fracture resistance of ferrous and nonferrous metals, and a direct translation to structural parameters has been developed using analysis diagrams for solving the complex analog relationship between the mechanical, metallurgical and structural aspects. A standard method for conducting the DT test using 5/8 in. thick specimens (5/8 DT) was developed to provide for uniform testing between laboratories. The standard 5/8 DT test can be used for specification purposes with 5/8 DT energy as dynamic performance criteria.


Descriptors :   *FRACTURE(MECHANICS) , *METAL PLATES , METALS , PERFORMANCE(ENGINEERING) , IMPACT TESTS , TEST FACILITIES , CORRELATION TECHNIQUES , CRACK PROPAGATION , ENERGY , TOUGHNESS


Subject Categories : Metallurgy and Metallography
      Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE