journal article·2004-12

Mixed numerical-analytical approach for dynamic one-point-bend test modelling

I. V. Rokach

International Journal of Fracture· Volume 130· Issue 4
Publisher page

Abstract

Specimen deformation during a one-point-bend impact test is modelled within 2D linear elasticity framework. Using modal superposition technique, the closed-form solutions for the striker force and dynamic stress intensity factor (DSIF) variation with time are derived. Parameters used in these solutions have been determined using plane stress finite element model of the specimen and approximated polynomially for a wide range of the specimen geometry parameters. The efficiency of the method proposed has been verified by comparison of the analytical results with the experimental data available in the literature and with the results of finite element analysis.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Fatigue and fracture mechanics · High-Velocity Impact and Material Behavior · Ultrasonics and Acoustic Wave Propagation

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (7)

Show source-provided references
1. Böhme W., Kalthoff J.F. (1982). The behaviour of notched bend specimens in impact testing. International Journal of Fracture, 20, R139?R143.10.1007/BF01130620 ↗
2. Kishimoto, K., Fujino, Y., Aoki, S., Sakata, M. (1990). A simple formula for the dynamic stress intensity factor of an impacted freely-supported bend specimen, JSME International Journal I, 33, 51?56.
3. Marur, P.R. (2000). Dynamic analysis of one-point bend impact test, Engineering Fracture Mechanics, 67, 41?53.10.1016/S0013-7944(00)00035-7 ↗
4. Rokach, I.V. (1997). On the influence of one-point-bend impact test parameters on dynamic stress intensity factor variation, Materials Science and Engineering A, A234-A236, 838?841.10.1016/S0921-5093(97)00303-1 ↗
5. Rokach, I.V. (1998). Modal approach for processing one-and three-point bend test data for DSIF-time diagram determination. Fatigue & Fracture of Engineering Materials & Structures, 21, 1007?1026.10.1046/j.1460-2695.1998.00087.x ↗
6. Rokach, I.V. (2001). Simple formulae for processing of the results of a one-point-bend test, Proc. of the Charpy Centenary Conference, 201?208.
7. Rokach, I.V. (2003). On the accurate determination of contact compliance for impact test modelling, International Journal of Solids and Structures, 40, 2715?2749.10.1016/S0020-7683(03)00088-X ↗