Accession Number:

ADP000008

Title:

Analysis of Mixed Mode Crack Growth in a Ship Hull Material under Dynamic Loading

Descriptive Note:

Corporate Author:

BATTELLE COLUMBUS DIV OH

Personal Author(s):

• Barnes, C. R.
• Ahmad, J.
• Kanninen, M. F.

Report Date:

1982-09-01

Pagination or Media Count:

16.0

Abstract:

Research on fracture in HY-100 steel under mixed mode Modes I and II, dynamic, elastic-plastic loading conditions is described. A combined experimental and finite element analysis effort was pursued. The analysis employed the J criterion for fracture a criterion which effectively generalizes the conventional J-integral to mixed mode and dynamic loading conditions. The experiments were performed with inclined-notch three-point-bend specimens of HY- 100 steel. By coupling the experiments and finite element analyses, a fracture criterion based on a critical J value was devised and verified.

Descriptors:

• *CRACK PROPAGATION
• *FINITE ELEMENT ANALYSIS
• *FRACTURE(MECHANICS)
• *SHIP HULLS
• *STEEL
• DISPLACEMENT
• DYNAMIC LOADS
• ELASTIC PROPERTIES
• EQUATIONS
• IMPACT TESTS
• J INTEGRALS
• LABORATORY TESTS
• NOTCH TOUGHNESS
• NUMERICAL ANALYSIS
• PLASTIC DEFORMATION
• STRESS ANALYSIS
• STRESS STRAIN RELATIONS

Subject Categories:

• Metallurgy and Metallography
• Numerical Mathematics
• Marine Engineering
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE