The Poisson s Ratio Of Multi Material Honeycomb - 1104 Words

As discussed in chapter 4, the Poisson’s ratio of multi-material honeycomb reentrant structure is tunable in method of changing E_r/E_v values. In order to prove the analytical simulation, the author has chosen the following Young’s modulus couple shown in Table 6-1. Table 6 1. Honeycomb reentrant samples composition Sample No. Reentrant struts E_r Vertical struts E_v E_r/E_v Flexible-FlexSL4 Flexible 10MPa FlexSL4 200MPa 0.05000 FlexSL4-Flexible FlexSL4 200MPa Flexible 10MPa 20.0000 Flexible-FlexSL5 Flexible 10MPa FlexSL5 152.2MPa 0.06557 FlexSL5-Flexible FlexSL5 152.2MPa Flexible 10MPa 15.2500 Flexible-FlexSL6 Flexible 10MPa FlexSL6 86MPa 0.11628 FlexSL6-Flexible FlexSL6 86MPa Flexible 10MPa 8.60000 Flexible-FlexSL7 Flexible 10MPa FlexSL7 54.5MPa 0.18349 FlexSL7-Flexible FlexSL7 54.5MPa Flexible 10MPa 5.45000 Flexible-FlexSL8 Flexible 10MPa FlexSL8 30MPa 0.30303 FlexSL8-Flexible FlexSL8 30MPa Flexible 10MPa 3.30000 There are four geometrical design parameters for the multi-material honeycomb re-entrant unit cell structure: vertical strut height H, re-entrant struts length L, the re-entrant angle ÃŽ ¸, and the strut cross section side length t. According to EMSL system’s manufacturing characteristic, these four parameters are chosen to be: ÃŽ ¸=60Â °, H / L / t = 10:5:1. Having these parameters, the re-entrant struts and vertical struts are designed in Solidworks and then assembled into lattice in Netfabb. Note that the entire lattice is divided into two material sets, so the

Heidi Chronicles Essay Research Paper Paper free essay sample

Heidi Chronicles Essay, Research Paper Paper # 1 Heidi Holland and Feminism in The Heidi Chronicles Wendy Wasserstein? s The Heidi Chronicles efforts to show the futility of the adult females? s rights motion, and its incapacity to carry through the demands of all adult females. We trace the chief character, Heidi, from the clip she develops an involvement in work forces, 1964, to the clip where she gives up on work forces and decides to carry through her ain demands for a household by following a kid. Wasserstein shows the infiltrating alterations in the life of American adult females with wit and mawkishness. Trapped between the commanding factors of duty and love, work forces and maternity, gender and political theory, Heidi and her friends hunt for understanding and selfhood over a 40-year span. In many ways, Heidi is a inactive character. She is lacerate between her ain desires and the influence of those around her when make up ones minding the class of her life. We will write a custom essay sample on Heidi Chronicles Essay Research Paper Paper or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page For illustration, in Act 1 Scene 2, she meets Scoop. It is obvious she does non desire to speak to him, but alternatively if being direct, she lies about her name: ? I know your name is Heidi because it says so on your name ticket. Heidi. H-E-I-D-I? ( Wasserstein 173 ) . Scoop catches her in her prevarication, seting her on the topographic point. The whole state of affairs could hold been avoided, nevertheless, had she a more confrontational disposition. She is besides really non-committal in her engagement with adult females? s rights. There is even a screaming 1970s consciousness-raising session set in an Ann Arbor church cellar. Act 1 Scene 3 demonstrates the general voice of the adult females? s motion. Although she is non a sapphic, as are some others in the group, Heidi participates, although merely half-heartedly. As Fran so says to her, ? You either shave your legs or you don? T? ( Wasserstein 180 ) . That is to state, she can either be involved or non, there is no in between way. In Sue Ellen Case? s article titled? Extremist Femin doctrine and Theater? she writes: ? Feminism is a theory ; Lesbianism is the practice. ? This statement embodies the feelings invoked at the meeting Heidi attends. She separates herself from adult females due to her engagement with work forces, and can therefore neer genuinely put the theory into pattern. Her engagement with work forces is unsuccessful, to state the least. One of Heidi? s biggest jobs is that she can non look to organize new group of friends who will accommodate her demands. Rather, she sticks by the friendly relationships she formed in her young person, although they leave her empty and unrealized. For illustration, her relationship with Scoop is both ineffectual and crazing. Scoop? s behaviour is unbearable, yet appealing because he is direct and unconventional. When they meet, he says to her, ? Are you a virgin? If you choose to accept this mission I? ll find out one manner or another? ( Wasserstein 174 ) . Coming from any other adult male, that comment merit a smack across the face, but Heidi is intrigued by Scoop because he is so original and blunt. However, they are both repelled by each other? s ambitious and acquisitive nature. Scoop could neer get married a adult female like Heidi because she is strong of head, outspoken, and competitory. All these are? non feminine? personality attributes, and he is fundamentally scared off as he subsequently admits in Act 1 Scene 5, at his nuptials. Scoop? s relationship with Heidi is so frustrating because of the combination of the fact that he is non in love with his married woman, he is in love with Heidi, yet he strings her along and neer commits to her. It is obvious that he is in love with Heidi ; he kisses her on his nuptials twenty-four hours. He says to Heidi: ? Is she an A+ like you? No. But I don? T want to come place to an A+ . A- possibly, but non A+ ? ( Wasserstein 201 ) . He knows that Heidi embodies a battalion of qualities that he both adores and are slightly intimidating. Therefore, he chooses to get married Lisa Freidlander, the antonym of all the things Heidi represents to Scoop.