Assessing the impact of wood decay fungi on the modulus of elasticity of slash pine (Pinus elliottii) by stress wave non-destructive testing

作者：Yang, Zhong; Jiang, Zhehui; Hse, Chung Y.; Liu, Ru^*

来源：International Biodeterioration & Biodegradation, 2017, 117: 123-127.

DOI：10.1016/j.ibiod.2016.12.003

• Biological decay
• Slash pine (Pinus elliottii) wood
• Dynamic evaluation
• Modulus of elasticity
• Stress wave

Small wood specimens selected from six slash pine (Pinus elliottii) trees were inoculated with brown-rot and white-rot fungi and then evaluated for static modulus of elasticity (MOE) and dynamic MOE (MOEsw). The experimental variables studied included a brown-rot fungus (Gloeophyllum trabeum) and a white-rot fungus (Trametes versicolor) for six exposure periods (2, 4, 6, 8, 10, and 12 weeks). The MOEsw was tested by a stress wave timer prior to static bending and the results were compared via regression analyses. Regression analyses indicated good correlations between static MOE and MOEsw. The R-2 ranged from 0.66 to 0.80 for non-decayed, brown-rot, white-rot, and all the specimens.

• 出版日期2017-2
• 单位中国林业科学研究院; 中国林业科学研究院林业研究所