Temperature effect on the physical and mechanical properties of parallel strand bamboo

Liu, Yanyan; Huang, Dongsheng; Zhu, Yiwu

doi:10.1002/fam.2940

Cited by 8 publications

(3 citation statements)

References 31 publications

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“…To prevent the thermal decomposition of bamboo chemical components, the rising temperatures shall not exceed 100°C. [ 40–43 ] All the tests were completed within 2 days and the creep data were recorded at an interval of 1 s.…”

Section: Experimental Programmentioning

confidence: 99%

“…The SIM tests were started at a temperature of 23 C. The dwell time for each isothermal step was 5 h. Each isothermal step was followed by a temperature rise of 7 C, and the temperature rise was completed within 10 min. To prevent the thermal decomposition of bamboo chemical components, the rising temperatures shall not exceed 100 C. [40][41][42][43] All the tests were completed within 2 days and the creep data were recorded at an interval of 1 s.…”

Section: Sim Accelerated Creep Testmentioning

confidence: 99%

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Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

et al. 2023

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In the present research, the accelerated test using the stepped isothermal method (SIM) was applied to characterize the long-term compressive behavior of laminated bamboo. Generating a creep master curve using the SIM data is somewhat empirical. In particular, the selection of the end and beginning segments in the rescaling process is not standardized, which will affect the determination of virtual time. The variability of the virtual time influences the construction of master curves, thus leading to errors in predicting long-term behavior. The difference in selecting the end and beginning segments was

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Section: Experimental Programmentioning

confidence: 99%

Section: Sim Accelerated Creep Testmentioning

confidence: 99%

Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

et al. 2023

Self Cite

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“…Xu et al [37,38] studied the nonlinear characteristics of reconstituted bamboo tensile and compression specimens under high temperature, established the strength reduction coefficient equation, and proposed the stressstrain relationship model. Liu et al [39] evaluated the influence of high temperature on the physical and mechanical properties of reconstituted bamboo. Zhu et al [21] analyzed the change rule of the microstructure of reconstituted bamboo in a high-temperature environment.…”

Section: Introductionmentioning

confidence: 99%

Bending properties and design strength of reconstituted bamboo at different temperatures

et al. 2022

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Reconstituted bamboo is a unidirectional fiber adhesive material with strong temperature sensitivity. The bending strength and deformation of reconstituted bamboo beams at different temperatures were measured using a three‐point bending test. At 10°C, 30°C, and 50°C, the samples showed a brittle tensile fracture, simple tensile fracture, and splintering tensile fracture modes respectively, the bending failure pattern of reconstituted bamboo was intensified with increasing temperature. The results show that with increasing temperature, the degree of interlaminar debonding cracking and longitudinal tensile fracture is aggravated, accompanied by shearing. The ultimate bearing capacity of the reconstituted bamboo decreased from 182.25 MPa to 124.89 MPa (a reduction of 31.47%) and the flexural modulus decreased from 11,329.25 MPa to 8679.90 MPa (a reduction of 23.39%) as the temperature increased from 10°C to 50°C. The temperature has little effect on the initial stiffness, and the postelastic stiffness decreases significantly (by 53.01%) with increasing temperature. The thermal softening effect has a significant influence on the plastic behavior of bamboo. A model of the design value of bending strength considering the temperature was established, and the design value of bending strength was evaluated.

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Tensile and compressive properties of bamboo scrimber under different temperature conditions

Deng,

Wei,

Chen

et al. 2024

Polymer Composites

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Bamboo scrimber demonstrates vulnerability to environmental temperature fluctuations, such as exposure to cold or fire, when deployed in structural applications. Consequently, its mechanical properties can substantially diverge from the intended design values under varying thermal conditions. This study aims to study the tensile and compressive properties of bamboo scrimber under different temperatures to provide data support for studying bamboo scrimber under low and high temperatures. The compressive properties of bamboo scrimber under temperatures ranging from −30°C to 250°C and the tensile properties under −20°C to 250°C were determined by a series of tests with a total of 125 specimens. The results show that the mass loss of bamboo scrimber increases gradually with the increase in temperature, and the increasing trend intensifies after 120°C. With the increase of temperature, the failure mode of the specimens under compression changes from the bottom compression cracking damage to the local destabilization of longitudinal fibers, while the tensile damage modes aren't influenced by temperature, and both “straight‐line” and “folded‐line” types of damage modes occur at different temperatures. The tensile and compressive strengths and elastic modulus of the specimens decreased with the increase in temperature, and the strength was more susceptible to the temperature than the elastic modulus: a rise in temperature from 20°C to 250°C resulted in a reduction of compressive strength and tensile strength by 80.80% and 84.11%, respectively, the compressive modulus and tensile modulus experienced decreases of 49.51% and 53.28%. Furthermore, equations of temperature influence coefficients of strength and elastic modulus were established based on the test results.Highlights Bamboo scrimber's mechanical properties under different temperatures are studied. Tendency and explanation of temperature influence coefficients are analyzed. Temperature coefficient equations for strength and elastic modulus are proposed.

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Temperature effect on the physical and mechanical properties of parallel strand bamboo

Cited by 8 publications

References 31 publications

Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

Experimental characterization of creep behavior of laminated bamboo composites based on stepped isothermal method

Bending properties and design strength of reconstituted bamboo at different temperatures

Tensile and compressive properties of bamboo scrimber under different temperature conditions

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