Nonlinear response of a beam to shock pulse

✍ Scribed by A.B. Schultz

• Publisher: Elsevier Science
• Year: 1963
• Tongue: English
• Weight: 365 KB
• Volume: 276
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(63)90562-3

✦ Synopsis

The response of a uniform clamped-free beam driven into the inelastic range by a half-sine pulse of ground acceleration is investigated. Shock spectra are presented for the case of bilinear moment-curvature relationships. The beam is represented as a ten-lump multi-degree-of-freedom system, and the resulting equations of motion are integrated numerically. Shock spectra of the same beam represented by a quasistatistically equivalent single-degree-of-freedom system are obtained. This latter system is found to produce quite satisfactory predictions of response through most of the range of the spectra. Use of the simplified system reduces the computational problem by several orders of magnitude.