本文選題：纖維復合材料 + 有限元法　； 參考：《復合材料學報》2016年10期

【摘要】：為探明雙穩(wěn)態(tài)復合材料層合結(jié)構(gòu)在復雜環(huán)境條件下的應用,對雙穩(wěn)態(tài)復合材料層合結(jié)構(gòu)的黏彈性行為進行了研究。首先,將纖維簡化為彈性材料,考慮基底材料的黏彈性行為。然后,根據(jù)纖維和基底的材料屬性,通過理論分析得到了雙穩(wěn)態(tài)復合材料層合結(jié)構(gòu)的黏彈性材料屬性;根據(jù)經(jīng)典層合板理論、最小應變能原理和Maxwell黏彈性模型建立了雙穩(wěn)態(tài)復合材料層合結(jié)構(gòu)的黏彈性模型,通過理論分析得到其第二穩(wěn)態(tài)主曲率與扭曲率隨加載時間和溫度的變化關系。同時,利用有限元軟件ABAQUS及其子程序UMAT建立了相應的有限元模型,研究了加載時間和溫度對層合結(jié)構(gòu)第二穩(wěn)態(tài)性能的影響。理論與模擬結(jié)果均表明:層合結(jié)構(gòu)第二穩(wěn)態(tài)主曲率隨加載時間的延長和溫度的升高而增大;扭曲率隨加載時間的延長而減小,一般情況下隨溫度的升高而增大,但在加載時間較長且溫度較高時,可能會出現(xiàn)扭曲率隨溫度升高而減小的情況。理論計算結(jié)果與有限元模擬結(jié)果的比較顯示兩者吻合較好,可以通過有限元模擬對雙穩(wěn)態(tài)復合材料層合結(jié)構(gòu)的黏彈性行為進行研究。
[Abstract]:In order to investigate the application of bistable composite laminated structure in complex environment, the viscoelastic behavior of bistable composite laminated structure was studied. Firstly, the fiber is simplified as an elastic material, and the viscoelastic behavior of the substrate is considered. Then, according to the material properties of fiber and substrate, the viscoelastic properties of bistable composite laminates are obtained by theoretical analysis. The minimum strain energy principle and Maxwell viscoelastic model are used to establish the viscoelastic model of bistable composite laminated structure. The relationship between the second steady state principal curvature and distortion rate with loading time and temperature is obtained by theoretical analysis. At the same time, the finite element model is established by using the finite element software Abaqus and its subprogram UMAT, and the influence of loading time and temperature on the second steady-state performance of laminated structure is studied. The theoretical and simulation results show that the second steady-state principal curvature of laminated structures increases with the increase of loading time and temperature, and the distortion rate decreases with the increase of loading time, and generally increases with the increase of temperature. However, when the loading time is longer and the temperature is higher, the distortion rate may decrease with the increase of temperature. The theoretical results are in good agreement with the finite element simulation results. The viscoelastic behavior of bistable composite laminated structures can be studied by finite element simulation.
【作者單位】： 浙江工業(yè)大學特種裝備制造與先進加工技術教育部/浙江省重點實驗室;
【基金】：國家自然科學基金(51675485) 浙江省自然科學基金(LY15E050016) 高等學校博士學科點專項科研基金(20123317120003)
【分類號】：TB33

【相似文獻】

相關期刊論文 前1條

1 齊勝利;賈南方;田國峰;石蕾;武德珍;;聚酰亞胺基電雙穩(wěn)態(tài)信息存儲材料研究進展[J];北京化工大學學報(自然科學版);2014年02期

相關會議論文 前1條

1 鄒瑩;肖述章;易濤;;基于二芳乙烯雙穩(wěn)態(tài)的光開關材料及其應用[A];中國化學會第26屆學術年會超分子組裝與軟物質(zhì)材料分會場論文集[C];2008年

相關碩士學位論文 前1條

1 解家男;基于雙穩(wěn)態(tài)結(jié)構(gòu)的壓電精密定位驅(qū)動器設計[D];大連理工大學;2015年

，

本文編號：2092972