Accession Number:

ADA010859

Title:

Fracture Dynamics of Wedge-Loaded DCB Specimen.

Descriptive Note:

Interim rept.,

Corporate Author:

WASHINGTON UNIV SEATTLE DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Kobayashi,A. S.
• Mall,S.
• Lee,M. H.

Report Date:

1975-04-01

Pagination or Media Count:

28.0

Abstract:

Dynamic photoelasticity was used to analyze the Battelle-type wedge-loaded DCB specimen machined from Homalite-100 sheets of 38-inch 9.5mm thickness. Dynamic stress intensity factors, dynamic strain energy release rate, crack velocities of straight and curved crack were determined. Corresponding static stress intensity factors were calculated by the method of finite element analysis. These results were compared against Kanninens analytical results and experimental results by Hahn et al., using steel specimen. While dynamic photoelasticity results show qualitative agreement with Kanninens results, the two differ in detail.

Descriptors:

• *FRACTURE(MECHANICS)
• *PHOTOELASTICITY
• FINITE ELEMENT ANALYSIS
• TEST METHODS
• STEEL
• CRACK PROPAGATION
• DYNAMIC LOADS
• WEDGES
• NOTCH TOUGHNESS

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE