INTERNAL STRESS CALCULATION METHOD, LIFETIME PREDICTION METHOD, DEFORMATION PREDICTION METHOD, DESIGN METHOD, AND MOLDING METHOD FOR MOLDED ARTICLE

• Main Authors: MOCHIZUKI AKIHIRO, TSUKADA TAKUHEI
• Format: Patent
• Language: English; Japanese
• Published: 01.10.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TESTING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide an internal stress calculation method capable of calculating an internal stress of a molded article during a molding process of the molded article.SOLUTION: The method includes a process of molding a molded article using a resin and a counterpart member equipped with a strain gauge at a position which is not in contact with the resin. During the molding process of the molded article, an internal stress of the molded article is calculated by using a change value of the strain of the counterpart member acquired from the strain gauge.SELECTED DRAWING: Figure 1 【課題】成形品の成形工程中における成形品の内部応力を算出することができる内部応力算出方法を提供する。【解決手段】樹脂と、前記樹脂に接触しない位置に歪ゲージが設けられた相手部材を用いて成形品を成形する工程を含み、前記成形品の成形工程中において前記歪ゲージから取得した前記相手部材の歪の変化値を用いて前記成形品の内部応力を算出する。【選択図】図１