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    • 3. 发明申请
    • EVALUATING METHOD OF THE FRACTURE TOUGHNESS USING THE CONTINUOUS INDENTATION METHOD
    • 使用连续灌注方法评估破裂韧性的方法
    • WO2006052060A1
    • 2006-05-18
    • PCT/KR2005/003039
    • 2005-09-14
    • FRONTICS, INC.KIM, Kwang-HoLEE, Jung-SukSEO, Yang-WonCHOI, Yeol
    • KIM, Kwang-HoLEE, Jung-SukSEO, Yang-WonCHOI, Yeol
    • G01N3/42
    • G01N3/42G01N2203/0064G01N2203/0078
    • The present invention relates to a method of evaluating the fracture toughness of a material using the continuous indentation technique. In the method of this invention, the stress coefficient, strain hardening modulus and yield stress of the material are determined using the continuous indentation technique and, thereafter, the reduced elastic modulus (E r ) of the material is calculated. The effective elastic modulus and the initial elastic modulus are calculated and, thereafter, the damage parameter is calculated using the void volume fraction. The critical elastic modulus and the characteristic fracture initiation point of the indentation depth are determined using the damage parameter and, thereafter, the fracture toughness of the material is evaluated. The present invention is advantageous in that the fracture toughness of a brittle material can be evaluated precisely using a nondestructive evaluation technique.
    • 本发明涉及使用连续压痕技术评价材料的断裂韧性的方法。 在本发明的方法中,使用连续压痕技术确定材料的应力系数,应变硬化模量和屈服应力,然后计算材料的弹性模量(E r)。 计算有效弹性模量和初始弹性模量,此后,使用空隙体积分数计算损伤参数。 使用损伤参数确定压痕深度的临界弹性模量和特征性断裂起始点,然后评估材料的断裂韧性。 本发明的优点在于,可以使用非破坏性评价技术精确地评价脆性材料的断裂韧性。
    • 8. 发明申请
    • EVALUATING METHOD OF THE RESIDUAL STRESS DETERMINING METHOD USING THE CONTINUOUS INDENTATION METHOD
    • 使用连续印记法的残余应力测定方法的评估方法
    • WO2006071001A1
    • 2006-07-06
    • PCT/KR2005/003947
    • 2005-11-22
    • FRONTICS, INC.JUNG, Won SeokKIM, Kwang Ho
    • KIM, Kwang Ho
    • G01N3/42
    • G01N3/42G01N2203/0076G01N2203/008G01N2203/0082
    • The present invention relates to a method of measuring residual stress and, more particularly, to a residual stress measuring method using a continuous indentation tester. Due to pile-up and sink-in of a material or a blunted tip, a conventional residual stress measuring method cannot compensate for error of a real contact (indentation) depth or directly remove stress through a thermal or mechanical technique in the conventional method of measuring residual stress of a weldment, so that it is very difficult to estimate a stress-free reference curve or to quantitatively measure residual stress. However, the present invention can precisely estimate a stress-free curve of a weldment using an indentation strength ratio (OIT ratio) of a stress-free base metal to the weldment, and compensates for error, occurring in the measurement of a material having a weldment or an anisotropic stress structure, based on the indentation strength ratio, thereby more precisely measuring residual stress. Thus, unlike the conventional method, the present method can minimize error occurring in the residual stress measuring process, and agrees with actual models.
    • 本发明涉及一种测量残余应力的方法,更具体地说,涉及使用连续压痕测试仪的残余应力测量方法。 由于材料的堆积和沉入或钝头,常规的残余应力测量方法不能补偿实际接触(压痕)深度的误差,或者通过热或机械技术直接去除应力 测量焊件的残余应力,使得很难估计无应力参考曲线或定量测量残余应力。 然而,本发明可以使用无应力的贱金属与焊件的压痕强度比(OIT比)精确地估计焊件的无应力曲线,并且补偿在测量具有 焊接或各向异性应力结构,基于压痕强度比,从而更准确地测量残余应力。 因此,与传统方法不同,本方法可以使残余应力测量过程中发生的误差最小化,并与实际模型一致。
    • 10. 发明申请
    • A PLANED CLOTHING WHICH IS ENABLED TO DESIGN, ATTACHE AND DETACHE EASILY
    • 设计,安装和拆卸易于使用的平面布
    • WO2004039186A2
    • 2004-05-13
    • PCT/KR2003/001917
    • 2003-09-19
    • KIM, Kwang Ho
    • KIM, Kwang Ho
    • A41D
    • A41F5/00A41F9/00
    • This invention has been made from a consideration of the clothing devised for easy attachment/detachment and redesign. With the connection structure for upper and bottom outfits, the beltline keeps the upper clothes from coming out of the pants by working as belts or straps. The natural fragrance and synthetic resin contained can get softened and hardened by adjusting temperature, which enables the wearer to reshape the pouch for comfort. The aroma fumed out from the natural fragrance pouch which is fixed on the structure can not only relieve the odor but also give the wear feeling of refreshment. As a whole, the present invention seeks to provide the wearer with more comfortable and personalized outfit.
    • 本发明是为了便于安装/拆卸和重新设计而设计的服装的考虑。 通过上下装置的连接结构,皮带线可以通过皮带或皮带的作用使上层衣服不会从裤子里脱出。 包含的天然香料和合成树脂可以通过调节温度而变软和硬化,这使得穿着者能够重塑袋子的舒适度。 固定在结构上的天然香料袋发出的香气不仅可以缓解气味,还能赋予清爽的磨损感。 整体而言,本发明旨在为佩戴者提供更舒适和个性化的服装。