WRC - BULLETIN 500
STRESS OR STRAIN CRITERIA FOR COMBINED STATIC AND DYNAMIC LOADING
| Organization: | WRC |
| Publication Date: | 1 January 2005 |
| Status: | active |
scope:
Stress or Strain Criteria for Combined Static and Dynamic
Loading This Bulletin covers the literature survey portion of a
research project to develop stress or strain criteria for combined
static and dynamic loading. The Bulletin includes a comprehensive
literature survey for material properties, limiting criteria,
strain rate effects and failure modes, an evaluation of the
literature obtained in the survey, and a summary report of the
evaluations. The survey focused primarily on dynamic material
properties developed by researchers in the period from early 1900
to the present. Results are grouped into two major categories:
basic material properties from test specimens and dynamic response
of components and systems. Many of the component tests were
conducted using simply supported and cantilevered beams with
rectangular and hollow circular (pipe) cross sections. The
literature survey identified not only strain-rate dependent
mechanical properties and component responses, but also limiting
criteria for combined static and dynamic loading conditions
proposed by various researchers. Only six references were placed
into this later category and only one identified a specific
limiting criterion for Uncombined static and dynamic loads. The
lack of proposed limiting criteria in the open literature is
disappointing and limits, to some extent, the objectivity of
evaluating the merits of different applicable criteria using data
obtained in the survey. Key information related to the development
of limiting criteria for static and dynamic loading conditions were
extracted from the source references and included in this summary
survey report. Only the one proposed criterion found in the
literature for Uncombined static and dynamic loading is included in
this report along with a significant collection of material
properties for both static and dynamic loading conditions. A brief
abstract, often an edited version of the one included in the source
reference, and a statement of relevancy to the development of
dynamic criteria precede the extracted information are also
included. The material properties cover a wide range of metal and
non-metal alloys and composites. The properties included in the
report are generally presented in both SI and English systems of
units. Recommendations for a future experimental program are
presented. The program focuses upon developing data to be used in
the combined static and dynamic interaction equation to establish
the interaction constants for specific material at various static
to dynamic load ratios and load types including
tension-compression,
Document History