Failure Analysis of Engineering Wood Products

Smith, Ian F. C.; Snow, Monica; Asiz, Andi

doi:10.1007/1-4020-4972-2_592

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…The ductility of joints into four scopes from brittle (D 2) to high ductility (D 6) according to their ductility coefficient [29].…”

Section: Discussionmentioning

confidence: 99%

“…Among these groups, the ductility of RI6 was significantly higher than that of other groups, while the ductility of CG group without reinforcement was relatively lower. According to the classification of ductility proposed by Smith et al [29], except the RI6 group belongs to high ductility, other groups were classified as low ductility.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Cyclic Behavior of Mortise-Tenon Joints Reinforced by Self-Tapping Screw

Yin

Guo

Wang

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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In this study, fully-thread countersunk head self-tapping screw (STS) with outer diameter of 6 mm and 8 mm were used to reinforce the mortise-tenon (MT) joints with horizontal and inclined insertion methods. A total of fifteen cyclic loading tests were carried out for one group of unreinforced joints and five groups of reinforced joints, and the load-carrying capacity, strength, stiffness, ductility and energy dissipation of these joints were evaluated. The results showed that larger diameter STS and more STS could improve the load-carrying capacity and initial stiffness of the joints, although it might accelerate the damage to the joints and change the failure modes of MT joints. In addition, different reinforcement methods had different improvement effect, as the joints reinforced by STS horizontal insertion had a more significant improvement in the load-carrying capacity, while the inclined insertion of STS had a more significant improvement in the initial stiffness. This study provides data for reinforcement of MT joints with STS, and different reinforcement methods can be selected according to different engineering requirements.

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“…The ductility of joints into four scopes from brittle (D 2) to high ductility (D 6) according to their ductility coefficient [29].…”

Section: Discussionmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

Cyclic Behavior of Mortise-Tenon Joints Reinforced by Self-Tapping Screw

Yin

Guo

Wang

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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“…Laminated veneer lumber (LVL) Sengon (Paraserianthes falcataria) was used in this study. LVL is a wood product manufac- Wooden joints ASTM D5652-95 [12] tured from rotary-peeled wood veneers bonded by a phenol-resorcinol or phenol-formal dehyde adhesive [8]. Geometric design and setting up of the joints.…”

Section: Methodsmentioning

confidence: 99%

Lateral Load Resistance of Laminated Veneer Lumber Sengonwooden Joints with Wooden Dowels

Palaeowati¹,

Awaludin²,

Siswosukarto³

2015

MST

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Analytical models for wooden-doweled joints need to be developed. The objective of this research is to determine whether the strength of wooden-doweled joints can be well predicted by equations developed for steel-doweled joints. In this experiment, various connection parameters, such as dowel diameter, species of the wooden dowel, and angle of joints, are studied. The joint specimens are loaded in a quasi-static state with four replications each. A5% offset diameter method is used to determine the lateral load resistance of the tested joints, while the predictions are evaluated by equations given in Indonesian National Standard (SNI) 7973-2013 and the European Yield Model (EYM). The results show that experimental lateral resistance is greater than that of the SNI prediction and is between the EYM prediction of elastic and the plastic conditions of the wooden dowel. Lateral load resistances given by the SNI and the elastic condition EYM are around 64.53% and 78.45% of the experimental result, respectively. In contrast to steeldoweled joints, the ductility coefficient of wooden-doweled joints increases as the dowel diameter increases. This is potentially due to the axial stiffness of the wooden dowels being relatively smaller than that of the wood member. Joint failure occurs due to plastic bearing deformation in the wood member surrounding the dowel, followed by the formation of two plastic hinges in the wooden dowel. AbstrakTahanan Lateral Sambungan Kayu LVL Sengon dengan Alat Sambung Pasak Kayu. Sambungan kayu dengan pasak kayu perlu dikembangkan khususnya terkait dengan model analisisnya. Tujuan dari penelitian ini adalah mengetahui apakah kekuatan sambungan kayu sistem pasak kayu dapat diprediksi dengan persamaan yang dikembangkan dengan sambungan baut besi atau tidak. Pada penelitian ini, parameter kekuatan sambungan dikaji dengan melakukan variasi diameter pasak, berat jenis pasak dan sudut sambungan. Pengujian sambungan dilakukan secara quasi-statik monotonik dengan empat sampel ulangan. Metode offset 5% diameter digunakan untuk menentukan tahanan lateral sambungan eksperimen, sedangkan prediksinya dilakukan dengan persamaan SNI 7973-2013 dan EYM. Hasil penelitian menunjukkan bahwa tahanan lateral eksperimen lebih besar dibandingkan dengan prediksi SNI dan berada di antara prediksi EYM kondisi elastis dan plastis pasak kayu. Tahanan lateral prediksi SNI dan EYM elastis berturut-turtu sebesar ± 64,53% dan ±78,45% dari nilai tahanan lateral eksperimen. Berbeda dengan sambungan kayu menggunakan baut besi, nilai daktilitas sambungan kayu dengan pasak kayu meningkat dengan penggunaan diameter pasak yang lebih besar. Hal tersebut sangat mungkin karena nilai kekakuan aksial (EA) pasak kayu jauh lebih kecil daripada kekakuan aksial batang kayu yang disambung. Kegagalan sambungan terjadi berupa rusak tumpu pada kayu sambungan serta terbentuknya dua sendi plastis (titik bengkok) pada pasak kayu.

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“…2), low ductility (2 < 4), moderate ductility (4 < 6), or high ductility ( > 6), according to Smith et al's categorization of Timber connections [20]. This classification helps in selecting the appropriate connection design for seismic-resistant structures based on the desired ductility and ultimate moment capacity.…”

Section: G Y Gmentioning

confidence: 99%

Experimental Investigation of an Innovative Beam-to-Column Connection Under Cyclic Loading

Mowafy

Imanpour

Chui

et al. 2023

World Conference on Timber Engineering (WCTE 2023)

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The mechanical behaviour of steel is crucial in hybrid steel-timber systems, especially in areas prone to seismic activity. This paper presents a study of a novel semi-rigid connection that employs U-shaped steel plates as seismic fuses in a beam-to-column connection. The connection aims to introduce self-centring steel braced frames as lateral systems, combined with mass timber structures as a gravity load-resisting system, to enhance their structural performance against earthquakes. The fuses are designed to yield in axial compression or tension, with a bending combination that enables the connection to produce yielding at a specific moment level. The study focuses on the results obtained from cyclic fuse testing, connection testing, and comparing the connections to existing solutions to demonstrate their potential as a reliable and resilient option for mass timber buildings in seismic areas. The findings indicate that the developed connections provide reliable ductile behaviour, and timber elements can be protected from damage through the capacity protection provided by the fuses and their yielding mechanism.

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Failure Analysis of Engineering Wood Products

Cited by 6 publications

References 2 publications

Cyclic Behavior of Mortise-Tenon Joints Reinforced by Self-Tapping Screw

Cyclic Behavior of Mortise-Tenon Joints Reinforced by Self-Tapping Screw

Lateral Load Resistance of Laminated Veneer Lumber Sengonwooden Joints with Wooden Dowels

Experimental Investigation of an Innovative Beam-to-Column Connection Under Cyclic Loading

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