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photoelastic adj.【物理學】光測彈性的。

photoelasticity

In planar - photoelastic experiment , transparent epoxy resin materials were formulated according to the practical young ' s elastic modulus of the knee bone tissue , then cut as the shape of the knee on x - rays and put them in the polarized light field with loads to observe the stress stripe of interference , thus the stress state of the knee joint can be comprehend 平面光彈性實驗是按膝關節骨組織彈性模量,制成近似實際組織透明環氧樹脂材料,并按膝關節x線上膝部形狀切割制成模型,加載后置于偏振光場中觀察應力光圖,了解膝關節應力分布狀況。

It will improve analysis efficiency and experimental precision greatly if putting the photoelastic images gotten from experiment into computer , obtaining the isochromatic and isoclinic data automatically and writing it into database directly . but because of the limitation of time and the difficulty of drawing pure isoclinics from images , the paper has only shown the achievements presently and simulated a disk under diametral compression as foundation on further research 把實驗中拍攝到的光彈性圖像輸入到計算機中,利用自動處理系統獲得等色線和等傾線等原始數據并將其直接輸入數據庫中,再依據本文提供的原理和方法求解結構的彈塑性應力值,可以大大的提高分析效率和實驗精度。

In automatic acquisition and procession of the photoelastic data , there are some troubles about how to acquire single isoclimcs and to improve the precision of evaluating isochromatic fringe orders in the thin slice of the three - dimension model when the actual problems are solved by photoelasticity 用光彈性實驗處理實際問題時,在數據自動采集與處理中,如何獲得單純等傾線的問題仍是一大難點,此外就是如何進一步提高三維凍結模型薄切片的等色線定級精度問題也比較困難。

Objective : finite element method and photoelastic experiment were used to study the principle of stress and strain on knee joint from genu varum 30 degree to genu valgum 30 degree . biomechanics proofs were provided about it ' s bad effects and treatment on clinical 目的:本課題采用有限元和光彈性的實驗方法,研究膝關節由內翻30至外翻30之間的應力應變規律,為全面了解膝內、外翻所產生的不良后果和臨床治療該病提供生物力學依據。

The complex function between isochromatic fringe orders and rgb gray values of the image pixels is described by bp artificial neural network . the technique can improve the precision of experimental stress analysis in three - dimensional photoelastic thin slices 其特點是通過bp神經網絡建立圖像中像素點的r 、 g 、 b顏色值與條紋級數n之間的非線性關系;可以準確地得到3級以內等色線條紋級數。

As we all know , photoelastic stress analysis is an advance method of structure stress analysis . but the limitation of some factors , such as the experimental material , is one of major challenges in the studying of photoplasticity 眾所周知,光彈性應力分析已是比較成熟的結構應力分析方法,但由于實驗材料等因素的限制,使光塑性的研究陷入了困境。

Abstract : objective in order to analyse the stress distribution of the mandibular full overdenture supported by implants with magnetic attachments . method two dimensional photoelastic stress analysis were used in this study 文摘:目的了解磁性固位的下頜種植覆蓋義齒的應力狀況及其分布規律,為磁性固位體的臨床應用提供生物力學依據。

Once more , the photoelastic model test is operated on the basis of the structure framework in the dame site . the results show that there lie - in some problems on resisting dislocation in daliushu dame site district 再次,以大柳樹壩址區的構造格局為基礎作了光彈性模型試驗,結果表明,大柳樹壩址區存在抗斷問題。

When endodontic dowels were in stalled in standardized moels , direct comparisons of stress distributing properties were analysed through photoelastic stress analysis 本研究是藉由光彈應力分析法來分析臨床上經常使用的一種現成螺旋根柱,比較觀察其長度及直徑大小對于所產生的應力之影響。

In order to reduce photoelastic data from the digitized fringe image and to avoid the repetitive work , a photoelastic digital imaging software independent device is presented 要采用計算機自動處理光彈性條紋圖像,僅有各種條紋圖像分析處理算法是不夠的,而必須將算法編制于軟件之中。

Standard test method for photoelastic determination of residual stress in a transparent glass matrix using a polarizing microscope and optical retardation compensation procedures 用偏光顯微鏡和光學延遲補償方法在透明玻璃基質中測定光彈性殘余應力的標準試驗方法

Standard test method for non - destructive photoelastic measurement of edge and surface stresses in annealed , heat - strengthened , and fully tempered flat glass 在退火淬火和全回火平面玻璃中邊緣和表面應力的無損光彈性測量的標準試驗方法

By incremental iteration , the numerical results are obtained , and compared with photoelastic experimental ones . they coincide well with each other 由光彈性實驗得到實驗解,并將此解與數值解進行比較和分析,誤差在合理范圍之內。

They are analytical method , bem , fem and photoelastic trial method , and each has its special advantages and limitations 目前,求解應力集中問題的方法主要有解析法、邊界元法、有限元法和光彈試驗法等。

Test method for shrinkage stresses in plastic embedment materials using a photoelastic technique for electronic and similar applications 用光彈性技術測定電子及類似用途的塑料灌封材料的收縮應力的試驗方法

Standard test method for photoelastic measurements of birefringence and residual strains in transparent or translucent plastic materials 透明或半透明塑性材料中雙折射及殘余應變的光彈性量度的標準試驗方法

The article is trying to find out an approach to resolve small deflection elastic - plastic problem with a photoelastic method 本文的目的就是要探索一種求解小變形彈塑性問題的光彈性應力分析方法。

In this thesis , the combination of photoelastic and numerical methods is used to study the two - dimensional elastic contact problems 本文利用光彈性-數值組合解法對平面彈性接觸問題進行了研究。

Test method for photoelastic measurements of birefringence and residual strains in transparent or translucent plastic materials 透明和半透明塑性材料雙光折射及殘余應變的光彈性測量的試驗方法