Thelightningthiefgraphicnovelpdfdownload

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Category: Graphic novels
Category: Novels by Rick Riordan
Category: The Lightning Thief (series)
Category: In the Greek mythology universe
Category: School Library Journal Books
Category: Young adult novel series
Category: Graphic novels by Rick Riordan1. Field of the Invention
The present invention relates to a door material testing apparatus used to test the rigidity and strength of a door of a vehicle.
2. Description of the Related Art
A vehicle door is generally made of a fiber reinforced polymer material. To test the rigidity and strength of a door, a load has to be applied to the door while a predetermined distance is maintained between the door and a frame portion surrounding the door. The load applied to the door is transmitted to the frame portion via the door and, as a result, an associated vehicle body. Such a door material testing apparatus is disclosed, for example, in Japanese Unexamined Patent Publication No. 9-225196.
The above apparatus includes a hydraulic cylinder. A piston head of the hydraulic cylinder is movably provided. The piston head is moved along with a top dead point of a door frame. A stopper is mounted on a cylinder rod of the hydraulic cylinder. As the piston head approaches the top dead point, the stopper contacts a top surface of a door frame to position the door. A foot-paw of a measuring device has a contact portion. A foot is movably attached to the foot-paw. A paw is fixedly attached to the foot and is supported to be engaged with the contact portion of the measuring device.
The piston head is moved, with the stopper contacting the top surface of the door frame, until a distance between the foot and the paw is maintained at a predetermined distance. A load applied to the door is measured by a load sensor. Since the load applied to the door is transmitted to the foot via the paw, the rigidity and strength of the door can be tested.
To accurately apply a load to the door, the position of the foot and the position of the paw with respect to the top dead point of the door frame need to be precisely adjusted. However, an increase in a stroke of the hydraulic cylinder results in a change in a distance between a front portion of the piston and the foot, and a change in a distance between a lower portion of the paw and the foot. Therefore, the positional relationship between the foot and the paw cannot be accurately maintained. As a result, the load applied to

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