Mechanical properties and micro conformation of small Chinese fir cell before and after combing

LI Yan-jun; ZHANG Hong; ZHANG Bi-guang; XU Mei-rong

Volume 21 Issue 2

Feb. 2017

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LI Yan-jun, ZHANG Hong, ZHANG Bi-guang, XU Mei-rong. Mechanical properties and micro conformation of small Chinese fir cell before and after combing[J]. Journal of Zhejiang A&F University, 2004, 21(2): 125-129.

Citation:

LI Yan-jun, ZHANG Hong, ZHANG Bi-guang, XU Mei-rong. Mechanical properties and micro conformation of small Chinese fir cell before and after combing[J]. Journal of Zhejiang A&F University, 2004, 21(2): 125-129.

Mechanical properties and micro conformation of small Chinese fir cell before and after combing

1.
School of Engineering , Zhejiang Forestry College , Lin,an , 311300, Zhejiang , China;
2.
School of Material Science and Technology , Beijing Forestry University , Beijing 100083 , China

Funds:

浙江省科学技术厅资助项目(011102164)

Received Date: 2003-10-09
Rev Recd Date: 2004-03-22
Publish Date: 2004-04-20

Abstract

A comparative study of the micro conformation and tensile strength of wood parallel to grain of small Chinese fir cell in the water saturation condition under different static pressures or before and after combing test was conducted .The best mechanical properties parameters of small Chinese fir under static pressure or by combing were gained in the study .The results showed that the best compression set of small Chinese fir was about 50 %.A few tracheids of small Chinese fir began to break when the compression set of small Chinese fir was greater than 30 %. The condition will turn serious with the increase in static pressure .Most of tracheids of small Chinese fir began to break when the compression set was greater than 50 %.However , the destruction rate slowed down and a few tracheid holes could be seen on the cross section of cell .The tensile test showed that tensile strength of wood along grain would be decrease with the increasing static pressure .[ Ch , 3 fig .1 tab .8 ref .]
- wood science,
- small Chinese fir (Cunninghamia lanceolata ),
- combing,
- micro conformation,
- mechanical properties,
- orient laminated strand lumber

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Mechanical properties and micro conformation of small Chinese fir cell before and after combing

1. School of Engineering , Zhejiang Forestry College , Lin,an , 311300, Zhejiang , China;

2. School of Material Science and Technology , Beijing Forestry University , Beijing 100083 , China

Funds:

浙江省科学技术厅资助项目(011102164)

Received Date: 2003-10-09

Rev Recd Date: 2004-03-22

Publish Date: 2004-04-20

Key words:

wood science /
small Chinese fir (Cunninghamia lanceolata ) /
combing /
micro conformation /
mechanical properties /
orient laminated strand lumber

Abstract: A comparative study of the micro conformation and tensile strength of wood parallel to grain of small Chinese fir cell in the water saturation condition under different static pressures or before and after combing test was conducted .The best mechanical properties parameters of small Chinese fir under static pressure or by combing were gained in the study .The results showed that the best compression set of small Chinese fir was about 50 %.A few tracheids of small Chinese fir began to break when the compression set of small Chinese fir was greater than 30 %. The condition will turn serious with the increase in static pressure .Most of tracheids of small Chinese fir began to break when the compression set was greater than 50 %.However , the destruction rate slowed down and a few tracheid holes could be seen on the cross section of cell .The tensile test showed that tensile strength of wood along grain would be decrease with the increasing static pressure .[ Ch , 3 fig .1 tab .8 ref .]

Mechanical properties and micro conformation of small Chinese fir cell before and after combing

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views