ASTM D6815-02a
Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
- Standard No.
- ASTM D6815-02a
- Release Date
- 2002
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D6815-09
- Latest
- ASTM D6815-22a
- Scope
1.1 This specification provides a procedure for testing and evaluating duration of load and creep effects of wood and wood-based materials relative to an accepted duration of load adjustment model. This specification was created for products that are currently covered by a consensus standard (for example, lumber, structural composite lumber and structural-use panels). This procedure is intended to demonstrate the engineering equivalence to the duration of load and creep effects of visually graded lumber as specified in Practice D 245 for a product under evaluation used in dry service conditions. This procedure is not intended to evaluate the performance of products under impact loading. Quantification of specific duration of load or creep factors is beyond the scope of this specification. For further guidance regarding the applicability of this specification refer to X1.1 in the Commentary.
1.2 Use of the procedure in this specification to determine equivalence to the Practice D 245 duration of load relationship is limited to solid wood and wood-based products whose long term load behavior is similar to that of solid wood. Equivalence demonstrated in this specification is dependent upon evaluation of a product's 90-day (minimum) creep-rupture performance. In this evaluation, three criteria must be satisfied: (1) adequate strength over a 90-day period, (2) decreasing creep rate, and (3) limited fractional deflection. A summary of the development of these criteria and the underlying assumptions behind them is provided in the Commentary in Appendix X1 and Appendix X2.
1.3 Long term degradation phenomena not described by a creep-rupture model are not addressed in this standard (see Commentary X1.2.4).
ASTM D6815-02a Referenced Document
- ASTM D1037 Standard Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
- ASTM D198 Standard Test Methods of Static Tests of Lumber in Structural Sizes
- ASTM D245 Standard Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber
- ASTM D2915 Standard Practice for Evaluating Allowable Properties for Grades of Structural Lumber
- ASTM D3043 Standard Methods of Testing Structural Panels in Flexure
- ASTM D4442 Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials
- ASTM D4761 Standard Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials
- ASTM D5457 Standard Specification for Computing the Reference Resistance of Wood-Based Materials and Structural Connections for Load and Resistance Factor Design
- ASTM D9 Standard Terminology Relating to Wood
- ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
- ASTM E4 Standard Practices for Force Verification of Testing Machines
- ASTM E6 Standard Terminology Relating to Methods of Mechanical Testing
ASTM D6815-02a history
- 2022 ASTM D6815-22a Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
- 2022 ASTM D6815-22 Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
- 2009 ASTM D6815-09(2015) Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
- 2009 ASTM D6815-09 Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
- 2002 ASTM D6815-02a Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
- 2002 ASTM D6815-02 Standard Specification for Evaluation of Duration of Load and Creep Effects of Wood and Wood-Based Products
